Maize Inbred PH2FA7 Breeding Time Reduction

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Solution Overview

Problem

The development of new maize varieties is a time-consuming process that takes six to twelve years, and there is a continuous need for stable, high-yielding maize varieties with improved traits such as disease resistance, drought tolerance, and better agronomic characteristics.

Innovation Solution

A novel maize variety, PH2FA7, is developed through careful breeding and selection, incorporating traits like cytoplasmic male sterility, disease resistance, and improved agronomic characteristics, using genetic manipulation and transformation techniques, and processes for producing hybrid maize seeds by crossing PH2FA7 with other maize varieties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional maize breeding methods are used to develop new varieties with desirable traits, then the varieties achieve stability and high yield, but the development process takes six to twelve years

Engineering Contradiction:
Improvevariety stabilityVSAvoidbreeding development time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates a pre-characterized inbred maize line PH2FA7 with known desirable traits including disease resistance, drought tolerance, and agronomic characteristics. This pre-developed genetic foundation can be directly used in hybrid combinations, eliminating the need for time-consuming traditional breeding cycles to establish stable parental lines with these traits.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces specific genetic modifications to the maize inbred line PH2FA7, including cytoplasmic male sterility traits and disease resistance genes, to create a parent line with optimized characteristics that can be rapidly deployed in hybrid programs without requiring extensive field testing and selection cycles.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If multiple desirable traits are combined in a single maize variety, then the variety achieves high yield and agronomic soundness, but the breeding process becomes more complex

Engineering Contradiction:
Improvemaize yieldVSAvoidbreeding process complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple desirable traits including disease resistance, drought tolerance, and improved agronomic characteristics into a single inbred maize line PH2FA7. This consolidated genetic package simplifies the breeding process by providing a ready-made parental line that contributes multiple positive traits to hybrid combinations, reducing the need for complex multi-generational selection programs.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The inbred maize line PH2FA7 is designed with universal applicability as a parental line for hybrid development. It possesses multiple functions including male sterility for ease of hybrid seed production, disease resistance for broad environmental adaptability, and high yield potential, making it a versatile parent that can be used across different breeding programs without requiring trait-specific customization.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10251363B1Maize inbred PH2FA7
Publication Date: 2019.04.09 PIONEER HI BREED INTERNATIONAL INC

AI summary

A novel maize variety designated PH2FA7 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2FA7 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2FA7 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH2FA7 or a locus conversion of PH2FA7 with another maize variety.